浅谈航天计量工作管理

计量是型号产品质量保证的重要技术基础。要做好对计量工作的管理,就必须认真扎实地贯彻执行国家的计量法令法规,强化监督管理：做好对测量设备的计量确认,为科研生产提供可靠的计量保障。     

航天运载器结构先进材料及工艺技术应用与发展展望

先进结构是支撑航天运载器研制及航天任务实施的基础,而先进材料与工艺技术则是先进航天运载器结构研制的重要基石.本文在简要论述航天运载器结构特点及我国发展趋势的基础上,综述了我国航天运载器结构金属材料、复合材料和智能材料的应用与发展需求,最后从超大型结构制造、整体高精高性能制造、复合材料结构制造、增材制造和绿色制造五个方面...     

空天飞行技术创新与发展展望

首先介绍了空天飞行技术的发展历程与现状;结合各国发展经验及空天飞行器飞行特点提出了空天飞行技术面临的基础科学问题,并依据目前的技术发展情况提出了具体解决途径;阐述了空天飞行技术的未来发展方向。太空是人类的未来,"廉价、便捷、安全、机动"的空天飞行器将颠覆现有进出空间方式开辟新太空时代。     

基于多层感知机的密封继电器PIND信号识别

设计了一套航天密封继电器信号识别方法，基于微粒碰撞噪声检测(PIND)法，通过对信号的时域及频域的特征分析选取了多个具有代表性的特征。运用了机器学习方法，采用多层感知机并对其进行超参数寻优，找到了最优的超参数组合。对信号进行处理分析来判断密封继电器内是否存在多余物。提高了分类的准确率，同时也提高了模型的整体性能。     

大数据技术在航天产品质量管理中的探讨

通过对军贸产品质量工作的分析，阐述了大数据技术在航天产品质量管理中的应用和分析，并从产品过程管控和数据结果分析的初步应用上进行了举例说明，提出了采用大数据技术进行质量管控的工作建议。     

Fostering research aptitude among high school students through space weather competition

Cultivating research culture at an early stage is important for capacity building in a community. The high school level is the appropriate stage for research to be introduced because of students’ competitive nature. Participation in the space weather competition is one of the ways in which research aptitude can be fostered in high school students in Malaysia. Accordingly, this paper presents how research elements were introduced to the students at the high school level through their participation in the space weather competition. The competition required the students to build a system to detect the presence of solar flares by utilizing VLF signals reflected from the ionosphere. The space weather competition started off with proposal writing for the space weather related project where the students were required to execute extensive literature review on the given topic. Additionally, the students were also required to conduct the experiments and analyse the data. Results obtained from data analysis were then validated by the students through various other observations that they had to carry out. At the end of the competition, students were expected to write a comprehensive technical report. Through this competition, the students learnt how to conduct research in accordance to the guidelines provided through the step by step approach exposed to them. Ultimately, this project revealed that the students were able to conduct research on their own with minimal guidance and that participation in the competition not only generated enjoyment in learning but also their interest in science and research.     

校企合作共建民航特色实训基地的探索与实践

通过校企合作共建实训基地的优势分析,探讨利用合作办学资源、促进实训建设,校企合作共建实训基地需要解决的问题,总结我院实训基地建设的一些成功经验,以及阐明今后努力的方向。     

Assessment of the suitability of public mobile data networks for aircraft telemetry and control purposes

This paper provides a review of the state of the art of relevant work on the use of public mobile data networks for aircraft telemetry and control proposes. Moreover, it describes the characterisation for airborne uses of the public mobile data communication systems known broadly as 3G. The motivation for this study was to explore how this mature public communication systems could be used for aviation purposes. An experimental system was fitted to a light aircraft to record communication latency, line speed, RF level, packet loss and cell tower identifier. Communications was established using internet protocols and connection was made to a local server. The aircraft was flown in both remote and populous areas at altitudes up to 8500 ft in a region located in South East Queensland, Australia. Results show that the average airborne RF levels are better than those on the ground by 21% and in the order of −77 dbm. Latencies were in the order of 500 ms (1/2 the latency of Iridium), an average download speed of 0.48 Mb/s, average uplink speed of 0.85 Mb/s, a packet of information loss of 6.5%. The maximum communication range was also observed to be 70 km from a single cell station. The paper also describes possible limitations and utility of using such communications architecture for both manned and unmanned aircraft systems.     

高职院校二级学院体制下的科研管理研究

基于高职院校二级学院科研管理体制,分析科研活动中院校领导、二级学院领导、科研项目负责人、教师个体研究者和院校科研管理机构不同角色的职责和使命,提出二级学院为科研管理主体,以重点学科发展需求为导向,以科研项目申报为抓手的科研管理思路,实现提高科研管理水平,创造良好的科研环境的目的。